Home / 8,621.71-12,922.12-6,118.96

Finding the Fourth Proportional to 8,621.71, 12,922.12 and 6,118.96

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Solution

The fourth proportional to 8,621.71, 12,922.12 and 6,118.96 is: 9,171.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,621.71 : 12,922.12 = 6,118.96 : x
  2. Step 2: Convert to fraction form
    8,621.71/12,922.12 = 6,118.96/x
  3. Step 3: Cross multiply
    8,621.71x = 12,922.12 × 6,118.96
  4. Step 4: Simplify right side
    8,621.71x = 79,069,840.19
  5. Step 5: Solve for x
    x = 79,069,840.19/8,621.71
  6. Step 6: Final answer
    x = 9,171.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.